Year	scale 1-100
1970	45.625
1971	45.625
1972	45.625
1973	50.625
1974	53.75
1975	53.75
1976	60
1977	60
1978	60
1979	60
1980	60
1981	60
1982	60
1983	60
1984	60
1985	60
1986	60
1987	60
1988	60
1989	60
1990	60
1991	60
1992	60
1993	60
1994	60
1995	60
1996	60
1997	60
1998	60
1999	60
2000	60
2001	60
2002	62.5
2003	62.5
2004	62.5
2005	62.5
2006	62.5
2007	62.5
2008	62.5
2009	62.5
2010	62.5
2011	62.5
2012	62.5
2013	62.5
2014	62.5
2015	62.5
2016	62.5
2017	62.5
2018	62.5
2019	62.5
2020	62.5
2021	62.5
2022	62.5
2023	62.5